Table 2 Pathological characteristics of tumor samples
| Â | Benign tumors | Malignant tumors | |
|---|---|---|---|
(N, %) | (N, %) | ||
Pathology subgroup/subtype | Neoplastic (14, 100%) | Epithelial (11, 68.75%) | |
 Serous cystadenoma (3) |  Serous (4) | ||
 Serous cystadenofibroma (1) |  Mucinous (2) | ||
 Simple serous cyst (2) |  Endometrioid (4) | ||
 Granulosa cell tumor (3) |  Clear cell (1) | ||
 Mature cystic teratoma (3) | Non-epithelial (3, 18.75%) | ||
 Mucinous cystadenoma (1) |  Yolk sac tumor (1) | ||
 Brenner tumor (1) |  Liposarcoma (1) | ||
|  |  Sretoli-leydig cell tumor (1) | ||
Metastatic (2, 12.5%) | |||
 Colon cancer (2) | |||
Grade | |||
|  | 1 | – | 5 (31.3%) |
2 | – | 5 (31.3%) | |
3 | – | 6 (37.5%) | |
Stage | |||
|  | I/II | – | 9 (56.3%) |
III/IV | – | 7 (43.8%) | |